Home / 127,515.71-175,964.64-70,923.44

Finding the Fourth Proportional to 127,515.71, 175,964.64 and 70,923.44

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Solution

The fourth proportional to 127,515.71, 175,964.64 and 70,923.44 is: 97,870.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,515.71 : 175,964.64 = 70,923.44 : x
  2. Step 2: Convert to fraction form
    127,515.71/175,964.64 = 70,923.44/x
  3. Step 3: Cross multiply
    127,515.71x = 175,964.64 × 70,923.44
  4. Step 4: Simplify right side
    127,515.71x = 12,480,017,761.11
  5. Step 5: Solve for x
    x = 12,480,017,761.11/127,515.71
  6. Step 6: Final answer
    x = 97,870.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.